At the end of each circuit (say, 5 to 6 exercises), challenge your cardiovascular system with a minute bout of intense activity. For instance, you could walk or run on a treadmill set at a steep incline, or hop on an elliptical or bike at a heavy resistance and low RPMs, or do sled drags.

Rest briefly and repeat the circuit 2 to 4 times.

This approach will help you maintain your strength and muscle endurance even after you become fatigued from the climbing and skiing.

About The Author

Craig Friedman
– Craig Friedman is the vice president of the performance innovation team at EXOS. He designs and implements performance training systems for professional athletes in all sports as well as elite youth and college athletes.